/*
 * The Unified Mapping Platform (JUMP) is an extensible, interactive GUI 
 * for visualizing and manipulating spatial features with geometry and attributes.
 *
 * Copyright (C) 2003 Vivid Solutions
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 * 
 * For more information, contact:
 *
 * Vivid Solutions
 * Suite #1A
 * 2328 Government Street
 * Victoria BC  V8T 5G5
 * Canada
 *
 * (250)385-6040
 * www.vividsolutions.com
 */
package geovista.jts.util;

/**
 * Simply a chunk of code that can be passed around. Facilitates 
 * Smalltalk-like programming. Also useful as a "lexical closure"
 * i.e. a chunk of code with variables having long lifetimes.
 * <p>
 * Typically only one of the #yield methods needs to be implemented.
 * Which one depends on the context.
 */
public abstract class Block {
    public Object yield(Object arg1, Object arg2) {
        throw new UnsupportedOperationException();
    }
    public Object yield(Object arg) {
        throw new UnsupportedOperationException();            
    }
    public Object yield() {
        throw new UnsupportedOperationException();            
    }    
}